A device capable of producing heat from gas, liquid fuel, or an electrical heating element designed for permanent installation in sheet metal ducts of a forced air circulating system. It consists of (1) a finned, steel burner tube, a combustion air blower, a control panel, and a constant level fuel supply system or (2) a device having a heating element which when connected to an electrical source, directly imparts heat. It may be provided with a flanged outer casing to facilitate mounting in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.
Classification: Air heaters and hot air distributors, not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel
NSN 5895-01-591-8922
NSN 6135-01-609-3630
NSN 6145-01-361-4174
NSN 5985-01-339-3430
NSN 4140-00-155-8012
NSN 5945-01-409-2718
NSN 5985-01-012-4281
NSN 7035-01-364-0286
NSN 2925-00-730-3115
NSN 6240-01-162-5941
NSN 5975-01-157-5450
NSN 7035-01-023-1008